Burner for gas furnaces



Jan. 2 1926. 1,569,567

E. OPDERBECK BURNER FOR GAS FURNACES Filed August 24, 1921 2 Sheets-Sheet 1 Mm; I

/5 I I I9 /2 m Jan. 12 ,1926.

2 Sheets-Sheet 2 E. OPDERBECK BURNER FOR GAS FURNACES Filed August 24, '1921 Patented Jan. 12, 1926.

UNITED STATES 1,569,507 PATENT OFFICE.

EH11; OPDEBBECK, OF GELSENKIBCHEN, GERMANY. ASSIGNOR T HEINRICH KOPPERS,

OF ESSEN-RUHB, GEBILNY.

BURNER FOR GAS FURNACES.

Application filed au ust 24, 1921. Serial m. 494,954.-

enurrnn mums THE rnovrsibns or rim act or lumen 3,1921, 41 sra'r. I.., 1313.

To all whom it may concern:

Be it known that I, EMIL OPDERBECK, a

. citizen of Germany, residing at Gelsenkirchen, Germany, have invented certain new and useful Improvements in Burners for Gas Furnaces (for which I have filed an application in Germany, January 30, 1915,

Pat. 311282), of which the following is a specification.

Myinvention relates to burners for industrial gas furnaces and more particularly to the furnaces of steam boilers. In furnaces of this kind, the gas pressure is subject to frequent variations. In order to maintain 15 in spite of their variations, the correct ratio of gas and air in the mixture required for a complete and economic combustion, and at the same time to obtain a thorough mixing of gas and air as well as a suitable flow of the combustion gases. I arrange the gas and air passages concentrically and provide a wheel in front of them which is provided with two, rims of blades so'that a rim is in ;front of each passage. Motion is imparted to the wheel by the'pressure of the heating gas acting on one rim as in a turbine,while the other rim, which is disposed in front of the air passage, acts like a ventilator and thus supplies the air required for combustion. The proportions of the two blade rims are such that, when the number of revolutions is varied, the quantity of air supplied by the ventilator portion of the wheel corresponds to the quantity of gas which $5 actuates the turbine portion .of the wheel. To the gas and the air are imparted a rotary motion so that they will be thoroughly mixed immediately at the rear of the burner and are forced against the surface to be heated, for instance the walls of a boiler flue. The result is a uniform and effective combustion and a good transmission of heat- In the drawings ailixed to this specification and forming part thereof, two devices embodying my invention are illustrated diagrammatically by way of example.

In the drawings Fig. 1 is an elevation and Fig. 2 a section of the simplest embodiment of my invention,

' Figs. 3 and 4 are similar views of a more perfect embodiment. Referring now to Figs. 1 and 2 the gas is supplied through a pipe 10, to an annular chamber 11 and leaves the chamber through a rim 12 of guide blades. Here it enters the turbineblade rim 13 of a wheel 14 which revolves in bearings 15 supported byarms 16. The blade rim 1-7 of wheel 14 which operates as a ventilator draws in air from the interior of casing 11 and forces it into the combustion chamber. The gas and the air are thoroughly mixed in consequence of their rotary motion and the rotating stream of combustible mixture effectively transmits its heatto the heating surface, in the present instance the fine 18 of a boiler 191 -The supply of air is regulated by a butterfly Va V vs 20. l Referring now .to Figs. 3 and 4, the principal object of this embodiment is ready ae-' cessibility, the annular casing 11 being de-- signed in two parts held together by dog clamps 21.. Thrust screws 22 in the clamps 21 force the tightening faces 23 and 24 of the part 11 of the casing against corresponding faces of the fixed casing 11. After unscrewing screws 22 and removing the bolt .25 by which the clamps 21 are held by means of eyes 26, the entire casin together with the wheel 14 can be turn outside about the hinge 27 so that the interior of the furnace is accessible. The flue 18 is here provided with a refractory lining'28 which, on the one hand, protects the flue and on. the other. hand, owing to its high temperature, ignites the mixture of as and air which is particularly important 1n case of a disturbance in the gas supply. The butterfly valve 20 is here arranged at the rear of bearing 15 so that the bearing is readily accessible during operation.

Owing to the inclined position of the gas nozzles a rotary motion is imparted to the gas stream or the flame and the gases are forced against the boiler walls by centrifugal action, so that the efiiciency of the boiler is very high. Owing to the 'rapid rotation of the wheel 14, the entire flue and therefore the process of combustion can readily be observed. If the blades have the correct curvature, any noise, for instance the buzzing sound produced by straight blades, is avoided.

Owing to the simple cleaning of the .Iiburner, which is particularly important for operation with impure gas, the burner can be cleaned in so short a time that it is only necessary to close the access to the boiler by. a separate plate during cleaning, whereupon cleaning can be efiected without any disturbancepf operation. When such burners are used for the blast heaters in blast furnaces, the arrangement ma be such that when the burner is remove by turning 'it as described, a cover is turned into the casing from the other side so as to .close the blast heater. Cleaning can now be eflected during the time the reviously heated heater is on blast, that IS, the air to be preheated is conducted through it.

I claim: v

1. In a burner for industrial gas furnaces in combination, an air duct and a gas duct, rotary means in the path of the gas traversing said gas duct arranged to be set revolving by the gas and means associated with said rotary means for transmitting the energy of How of the-gasonto the air in said air duct.

2. In a burner for industrial gasv furnaces in combination, an air duct and a gas duct, rotary means in the path of the gas traversing said gas duct arranged to be set revolvin -by the gas and means associated with said rotar means for exerting a sucking. action-on t e air in said air duct.

3. In a burner for industrial gas furnaces, in combination, concentric passages for supplying air and gas to the burner a wheel, a blade rim on said wheel adapted to be rotated by the as in the manner of a turbine and a bla e rim on said wheel adapted to draw in air.

4. In a burner for industrial gas furnaces, in combination, passages for supplying air and gas to the burner, a wheel, concentric blade rims on said wheel and means for supplyingair and gas to said rims.

5. In a burner for industrial gas furnaces, in combination, passages for supply- ,ing air andgas to the burner, and rotary means for imparting a rotary motion to said as and said air.

6x 11' a burner for industrial gas furnaces, in combination, passages for supplyingair and gas to the. burner, and rotary means for mixing said -'and air and for imparting arotary motion to said mixture.

. 7. Ina burner for industrial gas fur- :naces, in combination, es for supplyeburner, a wheel,"

ing air and gas to v concentric blade rims on said wheel, an

"annular chamber, a hollow space surrounded by said annular chamber, means for supplyand dogclam and t ing gas to said wheel through said annular chamber and means 'for supplying air tosaid wheel'through said hollow ace. 8. In a burner for industrial gas furnaces, incombination, passages for supplying air and gas to the burner, a wheel, confcentric blade rims on said wheel, an anrounded by said annular chamber, means for $11 plyinggas to one of said rims, throug 1' said annular chamber, and means for supplying air to the other rim through said hollow space.

10.,In a burner for industrial gas furnaces, in combination, passages for supplying air and gas to the burner, a whee pair of concentric blade rims on said wheel, an annular chamber, a hollow space surrounded by said annular chamber, means. for supplying gas to one of said rims, through said annular chamber, guide blades in said annular chamber. 11. In a burner for industrial gas ,furnaces, in combination, passages for supplying air and gas to the burner, a wheel, concentric blade rims on said wheel, and an annular casing adapted to suppl gas to said wheel, said casing being mad 1n two parts.

12. In a burner for industrial gas furnaces, in combination, passages for supplying air and gas to the burner, a wheel, concentric blade rims on said wheel, an aunular casing'adapted to supply gas to said wheel, said casing being made in two parts, and means. for turning said burner bodily to the outside.

naces, in combination, assages for supplying air and as to t e burner, a wheel, concentric blade rims on said wheel, an annular casing adapted to supsly gas to said wheel, said casing bein ma e in two parts dog clamps a apted to hold said two parts to ether.

' n testimony whereof. I; aflix my signature.

Em OP'DERBECKFI 13. In a burner. for industrial gas fur- 11st screws in-said 

